20625900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{197}}^1\times {\mathrm{349}}^1$

素因数の和:563

約数の個数: 72

約数和(自身を含む): 60152400

約数和(自身を除く): 39526500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 197, 300, 349, 394, 591, 698, 788, 985, 1047, 1182, 1396, 1745, 1970, 2094, 2364, 2955, 3490, 3940, 4188, 4925, 5235, 5910, 6980, 8725, 9850, 10470, 11820, 14775, 17450, 19700, 20940, 26175, 29550, 34900, 52350, 59100, 68753, 104700, 137506, 206259, 275012, 343765, 412518, 687530, 825036, 1031295, 1375060, 1718825, 2062590, 3437650, 4125180, 5156475, 6875300, 10312950, 20625900]

約数ペア:

[(1, 20625900), (2, 10312950), (3, 6875300), (4, 5156475), (5, 4125180), (6, 3437650), (10, 2062590), (12, 1718825), (15, 1375060), (20, 1031295), (25, 825036), (30, 687530), (50, 412518), (60, 343765), (75, 275012), (100, 206259), (150, 137506), (197, 104700), (300, 68753), (349, 59100), (394, 52350), (591, 34900), (698, 29550), (788, 26175), (985, 20940), (1047, 19700), (1182, 17450), (1396, 14775), (1745, 11820), (1970, 10470), (2094, 9850), (2364, 8725), (2955, 6980), (3490, 5910), (3940, 5235), (4188, 4925)]